Nested replace of strings with double quotes in Javascript

问题

In Logic Apps I have this function which replaces double double quotes with a zero for some strings. How can I replicate this in Javascript?

replace(replace(replace(replace(replace(body('HTTP_2'),'"PR_RENT":""','"PR_RENT":0'),'"PR_ID":""','"PR_ID":0'),'"PR_USUM":""','"PR_USUM":0'),'"PR_LEAS":""','"PR_LEAS":0'),'"PR_USER8":""','"PR_USER8":0')

I tried this code.

```
var json = workflowContext.actions.HTTP_2.outputs.body
if (json.PR_RENT=="\"\"")
{
json.PR_RENT=0
}
if (json.PR_ID=="\"\"")
{
json.PR_ID=0
}
if (json.PR_USUM=="\"\"")
{
json.PR_USUM=0
}
if (json.PR_LEAS=="\"\"")
{
json.PR_LEAS=0
}
if (json.PR_USER8=="\"\"")
{
json.PR_USER8=0
}
return json;
```

and got error messages like this for all the affected fields.

```[
 {
 "message": "Invalid type. Expected Integer but got String.",
 "lineNumber": 0,
 "linePosition": 0,
 "path": "Payload[0].PR_USER8",
 "value": "",
 "schemaId": "#/properties/Payload/items/properties/PR_USER8",
 "errorType": "type",
 "childErrors": []
 },
 ,
 {
 "message": "Invalid type. Expected Integer but got String.",
 "lineNumber": 0,
 "linePosition": 0,
 "path": "Payload[2].PR_RENT",
 "value": "",
 "schemaId": "#/properties/Payload/items/properties/PR_RENT",
 "errorType": "type",
 "childErrors": []
  }
]


Here is some of my JSON code

```{"Payload":[{"RLS_GROUP":"","PR_SNAM":"700063","PR_OWN":"qqq","PR_REF":"","PR_NAME":"Bqqq12","PR_ADD1":"qqq","PR_ADD2":"INDUSTRIAL ESTATE","PR_ADD3":"23  INDUSTRIAL ESTATE","PR_ADD4":"yyy","PR_ADD5":"","PR_ADD6":"GB","PR_POST":"WQDQWD","PR_TEL":"23213","PR_TELX":"21312312","PR_FAX":"","PR_CONT":"","PR_NUNIT":"","PR_INT":"","PR_TENR":"LEASED","PR_QDAY":"","PR_CLSS":"","PR_DRCT":"Closing","PR_AGENT":"","PR_NOWN":"","PR_BOWN":"","PR_SOL":"","PR_HSTT":"","PR_HEND":"","PR_HAMT":"","PR_PFREQ":"","PR_NTENT":"","PR_NFLR":"","PR_GRA":"","PR_WATER":"","PR_RATVAL":"","PR_RTCT":"","PR_SCHG":"","PR_OCHG":"","PR_GFA":"","PR_ZONEA":"","PR_ZONEB":"","PR_ZONEC":"","PR_UPDATE":"","PR_UTIME":"","PR_UUSER":"","PR_HIST":"","PR_TAXYN":"","PR_TAX":"","PR_START":"","PR_END":"","PR_FREQ":"","PR_QTR":"","PR_NDUE":"","PR_TAXRUN":"","PR_OUTLET":"","PR_INLET":"","PR_VAL":"","PR_CST":"","PR_FRWA":"","PR_FRWB":"","PR_PRINT":"","PR_NL":"","PR_CURRS":"","PR_NEXTS":"","PR_VAT":"D","PR_USER":"","PR_VQDAY":"","PR_OBS1":"STANDARD NORTH","PR_TYPE":"Property","PR_VATDATE":"","PR_FUTHER":"","PR_RESTEN":"","PR_CAPGOODS":"","PR_INSEE":"","PR_CURR":"","PR_AQDATE":"20190917","PR_USER1":"Office","PR_USER2":"Yes","PR_USER3":"","PR_USER4":"","PR_USER5":"20190917","PR_USER6":"","PR_USER7":"","PR_USER8":0,"PR_USER9":"","PR_USER10":"","PR_OBS2":"","PR_OBS3":"","PR_OBS4":"","PR_OBS5":"","PR_OBS6":"","PR_OBS7":"UK","PR_OBS8":"","PR_OBS9":"","PR_SOLD":"0","PR_DATESOLD":"20200917","PR_LAND":"","PR_LANDUM":"","PR_FREE":"","PR_ID":0,"PR_BTYP":"F","PR_LEAS":0,"PR_RENT":999999,"PR_USUM":0,"PR_FBUI":0,"PR_DREN":"","PR_USRC":"","PR_RSRC":"","PR_LSRC":"","PR_ELSR":"","PR_EGRS":"","PR_PROR":"","PR_BSTA":"","PR_LNAM":"123123213","PR_SITE":"","PR_REGION":"","PR_DESC":""}]}

I have to do this because the API is returning "" for integer fields instead of zero when there is no value.

I tried this code

var json = workflowContext.actions.HTTP_2.outputs.body;
json.Payload[0].RLS_GROUP='Test';
json.Payload[0].PR_REF=123;
return json;

and got this message

InlineCodeScriptRuntimeFailure. The inline code action 'JavaScriptCode' 
execution failed, with error 'Cannot read property '0' of undefined'.

Also, my Javascript action screen looks a bit different to yours.

I tried this code. It seems to have worked for the first example, but not all examples. Perhaps the data contains a space before the double double quotes. How do I iterate through all payload elements?

var jsonString = workflowContext.actions.HTTP_2.outputs.body;
const json =JSON.parse(jsonString);
const dic = json['Payload'][0];
const checkFields = ['PR_RENT','PR_ID','PR_USUM','PR_LEAS','PR_USER8'];
checkFields.forEach(field=>{
    console.log(dic[field]); 
    if(dic[field]=='""')
    {
        dic[field]=0;
        console.log(field);
    }
}
);
return json;

回答1:

If you want to use JavaScript to manage the json, just set the value directly. You could refer to my actions as the below pic show. The expression would be like json.key=value;

Update: I test with the array json it could work, you need to point the index. If not please provide more information.

回答2:

This treats the json as a string and not an array.

json=json.replace(/"PR_USER8":""/g,'"PR_USER8":0').replace(/"PR_RENT":""/g,'"PR_RENT":0').replace(/"PR_ID":""/g,'"PR_ID":0').replace(/"PR_USUM":""/g,'"PR_USUM":0').replace(/"PR_LEAS":""/g,'"PR_LEAS":0');
return json;```

I think this is better as it treats the json as an object not a string.

    ```
    var jsonString = workflowContext.actions.HTTP_2.outputs.body;
const json =JSON.parse(jsonString);
const ret =[];

const dic = json['Payload'];
const checkFields = ['PR_RENT','PR_ID','PR_USUM','PR_LEAS','PR_USER8'];
for(i in json['Payload'])
{


checkFields.forEach(field=>{
     if(json.Payload[i][field]=="")
    {
        json.Payload[i][field]=0;
       // console.log(field);
    }
}

);
}

return json;
    ```

来源：https://stackoverflow.com/questions/59161063/nested-replace-of-strings-with-double-quotes-in-javascript

标签

javascript

azure-logic-apps