Chilkat Online Tools

Go / Salesforce Platform APIs / Username Password Flow

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    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global_Ref.html">Global Unlock Sample for sample code.

    http := chilkat.NewHttp()
    var success bool

    req := chilkat.NewHttpRequest()
    req.AddParam("grant_type","password")

    jsonParam2 := chilkat.NewJsonObject()
    req.AddParam("client_id",*jsonParam2.Emit())

    jsonParam3 := chilkat.NewJsonObject()
    req.AddParam("client_secret",*jsonParam3.Emit())

    jsonParam4 := chilkat.NewJsonObject()
    req.AddParam("username",*jsonParam4.Emit())

    jsonParam5 := chilkat.NewJsonObject()
    req.AddParam("password",*jsonParam5.Emit())

    req.AddHeader("Accept","application/json")

    resp := http.PostUrlEncoded("https://login.salesforce.com{{site}}/services/oauth2/token",req)
    if http.LastMethodSuccess() == false {
        fmt.Println(http.LastErrorText())
        http.DisposeHttp()
        req.DisposeHttpRequest()
        jsonParam2.DisposeJsonObject()
        jsonParam3.DisposeJsonObject()
        jsonParam4.DisposeJsonObject()
        jsonParam5.DisposeJsonObject()
        return
    }

    sbResponseBody := chilkat.NewStringBuilder()
    resp.GetBodySb(sbResponseBody)

    jResp := chilkat.NewJsonObject()
    jResp.LoadSb(sbResponseBody)
    jResp.SetEmitCompact(false)

    fmt.Println("Response Body:")
    fmt.Println(*jResp.Emit())

    respStatusCode := resp.StatusCode()
    fmt.Println("Response Status Code = ", respStatusCode)
    if respStatusCode >= 400 {
        fmt.Println("Response Header:")
        fmt.Println(resp.Header())
        fmt.Println("Failed.")
        resp.DisposeHttpResponse()
        http.DisposeHttp()
        req.DisposeHttpRequest()
        jsonParam2.DisposeJsonObject()
        jsonParam3.DisposeJsonObject()
        jsonParam4.DisposeJsonObject()
        jsonParam5.DisposeJsonObject()
        sbResponseBody.DisposeStringBuilder()
        jResp.DisposeJsonObject()
        return
    }

    resp.DisposeHttpResponse()

    // Sample JSON response:
    // (Sample code for parsing the JSON response is shown below)

    // {
    //   "access_token": "ACCESS_TOKEN_GOES_HERE",
    //   "instance_url": "https://pozil-dev-ed.my.salesforce.com",
    //   "id": "https://login.salesforce.com/id/00D58000000arpqEAA/00558000000yFyDAAU",
    //   "token_type": "Bearer",
    //   "issued_at": "1609942615640",
    //   "signature": "SIGNATURE_GOES_HERE"
    // }

    // Sample code for parsing the JSON response...
    // Use this online tool to generate parsing code from sample JSON: Generate JSON Parsing Code

    access_token := jResp.StringOf("access_token")
    instance_url := jResp.StringOf("instance_url")
    id := jResp.StringOf("id")
    token_type := jResp.StringOf("token_type")
    issued_at := jResp.StringOf("issued_at")
    signature := jResp.StringOf("signature")

    http.DisposeHttp()
    req.DisposeHttpRequest()
    jsonParam2.DisposeJsonObject()
    jsonParam3.DisposeJsonObject()
    jsonParam4.DisposeJsonObject()
    jsonParam5.DisposeJsonObject()
    sbResponseBody.DisposeStringBuilder()
    jResp.DisposeJsonObject()

Curl Command

curl -X POST
	-H "Content-Type: application/x-www-form-urlencoded"
	-H "Accept: application/json"
	--data-urlencode 'grant_type=password'
	--data-urlencode 'client_id={{clientId}}'
	--data-urlencode 'client_secret={{clientSecret}}'
	--data-urlencode 'username={{username}}'
	--data-urlencode 'password={{password}}{{secretToken}}'
https://login.salesforce.com{{site}}/services/oauth2/token

Postman Collection Item JSON

{
  "name": "Username Password Flow",
  "event": [
    {
      "listen": "test",
      "script": {
        "exec": [
          "const jsonData = pm.response.json();",
          "const id = jsonData.id.split('/');",
          "",
          "const context = pm.environment.name ? pm.environment : pm.collectionVariables;",
          "context.set(\"_accessToken\", jsonData.access_token);",
          "context.set(\"_endpoint\", jsonData.instance_url);",
          "context.set(\"_userId\", id.pop());",
          "context.set(\"_orgId\", id.pop());",
          ""
        ],
        "type": "text/javascript"
      }
    }
  ],
  "request": {
    "auth": {
      "type": "noauth"
    },
    "method": "POST",
    "header": [
      {
        "key": "Content-Type",
        "value": "application/x-www-form-urlencoded"
      },
      {
        "key": "Accept",
        "value": "application/json",
        "type": "text"
      }
    ],
    "body": {
      "mode": "urlencoded",
      "urlencoded": [
        {
          "key": "grant_type",
          "value": "password",
          "type": "text"
        },
        {
          "key": "client_id",
          "value": "{{clientId}}",
          "type": "text"
        },
        {
          "key": "client_secret",
          "value": "{{clientSecret}}",
          "type": "text"
        },
        {
          "key": "username",
          "value": "{{username}}",
          "type": "text"
        },
        {
          "key": "password",
          "value": "{{password}}{{secretToken}}",
          "type": "text"
        }
      ]
    },
    "url": {
      "raw": "{{url}}{{site}}/services/oauth2/token",
      "host": [
        "{{url}}{{site}}"
      ],
      "path": [
        "services",
        "oauth2",
        "token"
      ]
    }
  },
  "response": [
    {
      "name": "Successful OAuth Username Password Login",
      "originalRequest": {
        "method": "POST",
        "header": [
          {
            "key": "Content-Type",
            "value": "application/x-www-form-urlencoded"
          },
          {
            "key": "Accept",
            "value": "application/json",
            "type": "text"
          }
        ],
        "body": {
          "mode": "urlencoded",
          "urlencoded": [
            {
              "key": "grant_type",
              "value": "password",
              "type": "text"
            },
            {
              "key": "client_id",
              "value": "CLIENT_ID_GOES_HERE",
              "type": "text"
            },
            {
              "key": "client_secret",
              "value": "CLIENT_SECRET_GOES_HERE",
              "type": "text"
            },
            {
              "key": "username",
              "value": "demo@pozil.org",
              "type": "text"
            },
            {
              "key": "password",
              "value": "PASSWORD_AND_SECURITY_TOKEN_GO_HERE",
              "type": "text"
            }
          ]
        },
        "url": {
          "raw": "https://login.salesforce.com/services/oauth2/token",
          "protocol": "https",
          "host": [
            "login",
            "salesforce",
            "com"
          ],
          "path": [
            "services",
            "oauth2",
            "token"
          ]
        }
      },
      "status": "OK",
      "code": 200,
      "_postman_previewlanguage": "json",
      "header": [
        {
          "key": "Date",
          "value": "Wed, 06 Jan 2021 14:16:55 GMT"
        },
        {
          "key": "Strict-Transport-Security",
          "value": "max-age=31536002; includeSubDomains"
        },
        {
          "key": "Public-Key-Pins-Report-Only",
          "value": "pin-sha256=\"9n0izTnSRF+W4W4WhQB8duS2bxVLfzXsY=\"; pin-sha256=\"5kJvNEMw0KjrCAu7eXY5HZdvSP91w=\"; pin-sha256=\"njN4rRG+zPUPHlv4+foULwl1g=\"; max-age=86400; includeSubDomains; report-uri=\"https://a.forcesslreports.com/hpkp-report/00D58000000arpqm\";"
        },
        {
          "key": "Expect-CT",
          "value": "max-age=86400, report-uri=\"https://a.forcesslreports.com/Expect-CT-report/00D58000000arpqm\""
        },
        {
          "key": "X-Robots-Tag",
          "value": "none"
        },
        {
          "key": "X-B3-TraceId",
          "value": "c21e47e40ecc875d"
        },
        {
          "key": "X-B3-SpanId",
          "value": "c21e47e40ecc875d"
        },
        {
          "key": "X-B3-Sampled",
          "value": "0"
        },
        {
          "key": "Cache-Control",
          "value": "no-cache,must-revalidate,max-age=0,no-store,private"
        },
        {
          "key": "Expires",
          "value": "Thu, 01 Jan 1970 00:00:00 GMT"
        },
        {
          "key": "X-ReadOnlyMode",
          "value": "false"
        },
        {
          "key": "Content-Type",
          "value": "application/json;charset=UTF-8"
        },
        {
          "key": "Vary",
          "value": "Accept-Encoding"
        },
        {
          "key": "Content-Encoding",
          "value": "gzip"
        },
        {
          "key": "Transfer-Encoding",
          "value": "chunked"
        }
      ],
      "cookie": [
      ],
      "body": "{\n    \"access_token\": \"ACCESS_TOKEN_GOES_HERE\",\n    \"instance_url\": \"https://pozil-dev-ed.my.salesforce.com\",\n    \"id\": \"https://login.salesforce.com/id/00D58000000arpqEAA/00558000000yFyDAAU\",\n    \"token_type\": \"Bearer\",\n    \"issued_at\": \"1609942615640\",\n    \"signature\": \"SIGNATURE_GOES_HERE\"\n}"
    }
  ]
}