Herramienta Análisis JSON
Herramienta Análisis JSON
Ejemplo de cada herramienta
La herramienta Análisis JSON tiene un ejemplo de uso. Consulta Flujos de trabajo de muestra para aprender cómo acceder a este y muchos otros ejemplos directamente en Alteryx Designer.
Utiliza la herramienta Análisis JSON para separar el texto JavaScript Object Notation (JSON) en un esquema de tabla para su procesamiento posterior. Se puede volver a convertir a un formato JSON que se puede utilizar si se introduce la salida a la
Configure the Tool
JSON Field: Select the fields that hold JSON text. The field must contain valid JSON with all the text for a record in a single cell. Refer to this example:
{ "firstName": "John", "lastName": "Smith", "age": 25, "address": { "streetAddress": "21 2nd Street", "city": "New York", "state": "NY", "postalCode": "10021" }, "phoneNumber": [ { "type": "home", "number": "212 555-1234" }, { "type": "fax", "number": "646 555-4567" } ] }Input in Output: The selected column is included in the data stream coming out of the tool.
Choose how the JSON gets parsed. Choices include...
Output values into single string field
Output values into data type specific fields
Unnest JSON field: This option is available via AMP only.
Flatten array: This option is available via AMP only.
Refer to the sections below for additional information and examples for each of the above options.
This option outputs 2 fields: JSON_Name and JSON_ValueString. Using the input example above, this data comes out of the tool:
Example
JSON Input
{
"firstName": "John",
"lastName": "Smith",
"age": 25,
"address": {
"streetAddress": "21 2nd Street",
"city": "New York",
"state": "NY",
"postalCode": "10021"
},
"phoneNumber": [
{
"type": "home",
"number": "212 555-1234"
},
{
"type": "fax",
"number": "646 555-4567"
}
]
}JSON Parse Tool Output
JSON_Name | JSON_ValueString |
|---|---|
firstName | John |
lastName | Smith |
age | 25 |
address.streetAddress | 21 2nd Street |
address.city | New York |
address.state | NY |
address.postalCode | 10021 |
phoneNumber.0.type | home |
phoneNumber.0.number | 212-555-1234 |
phoneNumber.1.type | fax |
phoneNumber.1.number | 646-555-4567 |
This option outputs these 5 fields:
Nombre del campo | Descripción |
|---|---|
JSON_Name | JSON_Name es la “clave” de un objeto JSON (par de clave:valor). Un punto separa la clave y cualquier categoría jerárquica. |
Cadena JSON_Value | El "valor" de cadena correspondiente al objeto JSON (par clave:valor). Si el valor no es una cadena, se mostrará como [Null]. |
JSON_ValueInt | El "valor" entero correspondiente al objeto JSON (par clave:valor). Si el valor no es un entero, se mostrará como [Null]. |
JSON_ValueFloat | El "valor" flotante correspondiente al objeto JSON (par clave:valor). Si el valor no es flotante, se mostrará como [Null]. |
JSON_ValueBool | El "valor" bool correspondiente al objeto JSON (par clave:valor). Si el valor no es bool, se mostrará como [Null]. |
Example
JSON Input
{
"firstName": "John",
"lastName": "Smith",
"age": 25,
"address": {
"streetAddress": "21 2nd Street",
"city": "New York",
"state": "NY",
"postalCode": "10021"
},
"phoneNumber": [
{
"type": "home",
"number": "212 555-1234"
},
{
"type": "fax",
"number": "646 555-4567"
}
]
}JSON Parse Tool Output
JSON_Name | JSON_ValueString | JSON_ValueInt | JSON_ValueFloat | JSON_ValueBool |
|---|---|---|---|---|
firstName | John | [Null] | [Null] | [Null] |
lastName | Smith | [Null] | [Null] | [Null] |
age | [Null] | 25 | [Null] | [Null] |
address.streetAddress | 21 2nd Street | [Null] | [Null] | [Null] |
address.city | New York | [Null] | [Null] | [Null] |
address.state | NY | [Null] | [Null] | [Null] |
address.postalCode | 10021 | [Null] | [Null] | [Null] |
phoneNumber.0.type | home | [Null] | [Null] | [Null] |
phoneNumber.0.number | 212-555-1234 | [Null] | [Null] | [Null] |
phoneNumber.1.type | fax | [Null] | [Null] | [Null] |
phoneNumber.1.number | 646-555-4567 | [Null] | [Null] | [Null] |
This option allows to un-nest JSON objects into columns. It goes only one level deeper into the JSON object.
Aviso
Unnest JSON Field is available via AMP only.
Example
JSON Input
Consider an "hours" column in the input with these values:
{
"Tuesday": {"close": "17:00", "open": "08:00"},
"Friday": {"close": "17:00", "open": "08:00"},
"Monday": {"close": "17:00", "open": "08:00"},
"Wednesday": {"close": "17:00", "open": "08:00"},
"Thursday": {"close": "17:00", "open": "08:00"}
}JSON Parse Tool Output
This is the output when you unnest the above "hours" column:
hours.Tuesday | hours.Friday | hours.Monday | hours.Wednesday | hours.Thursday |
|---|---|---|---|---|
{"close":"17:00","open":"08:00"} | {"close":"17:00","open":"08:00"} | {"close":"17:00","open":"08:00"} | {"close":"17:00","open":"08:00"} | {"close":"17:00","open":"08:00"} |
Unnest on the "hours" column outputs columns "hours.Tuesday", "hours.Friday", "hours.Monday" and so on.
"hours.Tuesday" continues to carry the object: {"close": "17:00", "open": "08:00"}. You can unnest this again to hours.Tuesday.close and hours.Tuesday.open with another Json Parse tool.
This option is applicable for columns that have array values only. It allows you to expand a JSON array column by removing the square brackets. It creates a separate row for each element separated by a comma and assigns an ID for each row.
Aviso
Flatten Array is available via AMP only.
Example
JSON Input
Consider this array input in square brackets where the column name is "hours" and the column value is an array:
[
{"day": "Monday", "open": "08:00", "close": "17:00"},
{"day": "Tuesday", "open": "08:00", "close": "17:00"},
{"day": "Wednesday", "open": "08:00", "close": "17:00"},
{"day": "Thursday", "open": "08:00", "close": "17:00"},
{"day": "Friday", "open": "08:00", "close": "17:00"}
]JSON Parse Tool Output
hours_flatten | hours_idx |
|---|---|
{"day":"Monday","open":"08:00","close":"17:00"} | 1 |
{"day":"Tuesday","open":"08:00","close":"17:00"} | 2 |
{"day":"Wednesday","open":"08:00","close":"17:00"} | 3 |
{"day":"Thursday","open":"08:00","close":"17:00"} | 4 |
{"day":"Friday","open":"08:00","close":"17:00"} | 5 |