# HTTP Parameters

The representations are a combination of attributes used to describe the individual resources. Consumers of Resources should tolerate the addition of new attributes and variance in ordering of attributes with ease. Not all attributes appear in all contexts. It is generally safe to consider a nulled attribute, an empty set, and the absence of an attribute as the same thing.

#### Request Ar*guments*

Conduit requests allow for arguments to be specified as part of the request URL. While some resources have required arguments, most are optional and are used to alter, refine or filter the response.

Arguments are specified using the standard Query string format and should be appended to the resource endpoint, prefixed with a ‘?’. 

```url
https://api.alphax.cloud/conduitv6?token=xxxxxxxxxxxxxxxxxxxx&fcdt=1539792000&tcdt=1539840604 e
```

All special characters should be Url Encoded.

#### Attributes

Attributes are assigned specific Data types which are enforced for all requests and include:

**token \[REQUIRED]:** The unique security token for each user. This is available from the User window in AlphaX. This parameter is required to access the conduit service, if confused about how to get token, contact Minnovation Team.

**id \[OPTIONAL]:** The network ID that is used to register and track the device in the AlphaX system. This parameter is optional, if not defined, you will get data values for all devices the user has site access to.

**ch \[OPTIONAL]:** The individual channel ID that is assigned within the AlphaX system. This parameter is optional, if not defined, you will get data values for all the channels of the requested devices.

**fcdt \[OPTIONAL]:** From Created Date Time, the starting range timestamp in seconds. This parameter is optional, if not defined, you will get data values of last one hour. This parameter definition requires ‘tcdt’ parameter definition to work as desired.

**tcdt \[OPTIONAL]:** To Created Date Time, the ending range timestamp in seconds. This parameter is optional, if not defined, you will get data values of last one hour. This parameter definition requires ‘fcdt’ parameter definition to work as desired

{% hint style="danger" %}
Retrieval of data values with single GET request is limited as per your AlphaX Cloud subscription. [Refer here for limits that apply](/rate-limits.md)
{% endhint %}


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```
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```

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